[sdiy] Art of electronics computer

[David G Dixon]

> They specify the HP 5082-7340 but i think others would work.
> Anyone know where to find those cheaply?

AFAIK, it is impossible to find hex displays today.  I tried to find some
for a step sequencer thingy I was working on a while ago, and everything I
found was long obsolete and unobtainium.  I wanted a 7-segment display
driver that would give 0 1 2 3 4 5 6 7 8 9 A b C d E F out, but this is not
to be had anymore, apparently.